Port Costa School
E489330
Port Costa School is a historic former schoolhouse in Port Costa, California, recognized as one of the town’s most notable landmark buildings.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Port Costa School canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5048127 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Port Costa School Context triple: [Port Costa, California, notableBuilding, Port Costa School]
-
A.
Penair School
Penair School is a coeducational secondary school and academy serving students in and around the city of Truro in Cornwall, England.
-
B.
Scone Public School
Scone Public School is a primary education institution serving the community of Scone, New South Wales, Australia.
-
C.
Parkes High School
Parkes High School is a secondary school serving the educational needs of students in the town of Parkes, New South Wales, Australia.
-
D.
Coolum State High School
Coolum State High School is a public secondary school serving the coastal community of Coolum Beach in Queensland, Australia.
-
E.
Taree High School
Taree High School is a secondary education institution located in the town of Taree in New South Wales, Australia.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Port Costa School Target entity description: Port Costa School is a historic former schoolhouse in Port Costa, California, recognized as one of the town’s most notable landmark buildings.
-
A.
Penair School
Penair School is a coeducational secondary school and academy serving students in and around the city of Truro in Cornwall, England.
-
B.
Scone Public School
Scone Public School is a primary education institution serving the community of Scone, New South Wales, Australia.
-
C.
Parkes High School
Parkes High School is a secondary school serving the educational needs of students in the town of Parkes, New South Wales, Australia.
-
D.
Coolum State High School
Coolum State High School is a public secondary school serving the coastal community of Coolum Beach in Queensland, Australia.
-
E.
Taree High School
Taree High School is a secondary education institution located in the town of Taree in New South Wales, Australia.
- F. None of above. chosen
Statements (14)
| Predicate | Object |
|---|---|
| instanceOf |
former school
ⓘ
historic school building ⓘ landmark ⓘ |
| architecturalType | schoolhouse ⓘ |
| currentUse | no longer used as a school ⓘ |
| hasFunction | education (historical) ⓘ |
| hasName | Port Costa School ⓘ |
| heritageStatus | historic building ⓘ |
| locatedIn |
Contra Costa County, California
ⓘ
linked to:
Contra Costa County
Port Costa, California ⓘ |
| locatedInCountry |
United States
ⓘ
linked to:
United States of America
|
| partOf | the historic built environment of Port Costa, California ⓘ |
| significance | one of the most notable landmark buildings in Port Costa ⓘ |
| usedAs | schoolhouse (historical) ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Port Costa School Description of subject: Port Costa School is a historic former schoolhouse in Port Costa, California, recognized as one of the town’s most notable landmark buildings.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.